How to Repond to Reference Check

[BlackjackAJ]

At my old job I managed someone somewhat annoying but who overall did an OK job. Since leaving that job I have heard from my old coworkers that this individual had since become really weird (distant, apathetic, possibly did hard drugs etc). I got a cheerful message the other day from this person saying that they had listed me as a reference on a job application. How "it would really help her out to receive a decent recommendation." Next, I got a call from an employer wanting to do some background checking. What do I do? It may seem simple, but I did technically leave on OK terms with the employee.